Causal interactions and delays in a neuronal ensemble

Details Causal interactions and delays in a neuronal ensemble Causal interactions and delays in a neuronal ensemble

2006-09-20

arxiv.org/abs/cond-mat/0609523v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

7 pages, 3 figures. To appear in the AIP seminar notes of 9th Granada seminar on Computational Physics: Computational and Math

Scientific paper

We analyze a neural system which mimics a sensorial cortex, with different input characteristics, in presence of transmission delays. We propose a new measure to characterize collective behavior, based on the nonlinear extension of the concept of Granger causality, and an interpretation is given of the variation of the percentage of the causally relevant interactions with transmission delays.

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